arch/powerpc/platforms/Kconfig.cputype

   1 config PPC64
   2         bool "64-bit kernel"
   3         default n
   4         select HAVE_VIRT_CPU_ACCOUNTING
   5         help
   6           This option selects whether a 32-bit or a 64-bit kernel
   7           will be built.
   8
   9 menu "Processor support"
  10 choice
  11         prompt "Processor Type"
  12         depends on PPC32
  13         help
  14           There are five families of 32 bit PowerPC chips supported.
  15           The most common ones are the desktop and server CPUs (601, 603,
  16           604, 740, 750, 74xx) CPUs from Freescale and IBM, with their
  17           embedded 512x/52xx/82xx/83xx/86xx counterparts.
  18           The other embeeded parts, namely 4xx, 8xx, e200 (55xx) and e500
  19           (85xx) each form a family of their own that is not compatible
  20           with the others.
  21
  22           If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx.
  23
  24 config PPC_BOOK3S_32
  25         bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx"
  26         select PPC_FPU
  27
  28 config PPC_85xx
  29         bool "Freescale 85xx"
  30         select E500
  31
  32 config PPC_8xx
  33         bool "Freescale 8xx"
  34         select FSL_SOC
  35         select 8xx
  36         select PPC_LIB_RHEAP
  37
  38 config 40x
  39         bool "AMCC 40x"
  40         select PPC_DCR_NATIVE
  41         select PPC_UDBG_16550
  42         select 4xx_SOC
  43         select PPC_PCI_CHOICE
  44
  45 config 44x
  46         bool "AMCC 44x, 46x or 47x"
  47         select PPC_DCR_NATIVE
  48         select PPC_UDBG_16550
  49         select 4xx_SOC
  50         select PPC_PCI_CHOICE
  51         select PHYS_64BIT
  52
  53 config E200
  54         bool "Freescale e200"
  55
  56 endchoice
  57
  58 choice
  59         prompt "Processor Type"
  60         depends on PPC64
  61         help
  62           There are two families of 64 bit PowerPC chips supported.
  63           The most common ones are the desktop and server CPUs
  64           (POWER3, RS64, POWER4, POWER5, POWER5+, POWER6, ...)
  65
  66           The other are the "embedded" processors compliant with the
  67           "Book 3E" variant of the architecture
  68
  69 config PPC_BOOK3S_64
  70         bool "Server processors"
  71         select PPC_FPU
  72         select PPC_HAVE_PMU_SUPPORT
  73         select SYS_SUPPORTS_HUGETLBFS
  74         select HAVE_ARCH_TRANSPARENT_HUGEPAGE if PPC_64K_PAGES
  75         select ARCH_SUPPORTS_NUMA_BALANCING
  76         select IRQ_WORK
  77
  78 config PPC_BOOK3E_64
  79         bool "Embedded processors"
  80         select PPC_FPU # Make it a choice ?
  81         select PPC_SMP_MUXED_IPI
  82         select PPC_DOORBELL
  83
  84 endchoice
  85
  86 choice
  87         prompt "CPU selection"
  88         depends on PPC64
  89         default GENERIC_CPU
  90         help
  91           This will create a kernel which is optimised for a particular CPU.
  92           The resulting kernel may not run on other CPUs, so use this with care.
  93
  94           If unsure, select Generic.
  95
  96 config GENERIC_CPU
  97         bool "Generic"
  98         depends on !CPU_LITTLE_ENDIAN
  99
 100 config CELL_CPU
 101         bool "Cell Broadband Engine"
 102         depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 103
 104 config POWER4_CPU
 105         bool "POWER4"
 106         depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 107
 108 config POWER5_CPU
 109         bool "POWER5"
 110         depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 111
 112 config POWER6_CPU
 113         bool "POWER6"
 114         depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 115
 116 config POWER7_CPU
 117         bool "POWER7"
 118         depends on PPC_BOOK3S_64
 119
 120 config E5500_CPU
 121         bool "Freescale e5500"
 122         depends on E500
 123
 124 config E6500_CPU
 125         bool "Freescale e6500"
 126         depends on E500
 127
 128 endchoice
 129
 130 config PPC_BOOK3S
 131         def_bool y
 132         depends on PPC_BOOK3S_32 || PPC_BOOK3S_64
 133
 134 config PPC_BOOK3E
 135         def_bool y
 136         depends on PPC_BOOK3E_64
 137
 138 config 6xx
 139         def_bool y
 140         depends on PPC32 && PPC_BOOK3S
 141         select PPC_HAVE_PMU_SUPPORT
 142
 143 config POWER3
 144         depends on PPC64 && PPC_BOOK3S
 145         def_bool y
 146
 147 config POWER4
 148         depends on PPC64 && PPC_BOOK3S
 149         def_bool y
 150
 151 config PPC_A2
 152         bool
 153         depends on PPC_BOOK3E_64
 154
 155 config TUNE_CELL
 156         bool "Optimize for Cell Broadband Engine"
 157         depends on PPC64 && PPC_BOOK3S
 158         help
 159           Cause the compiler to optimize for the PPE of the Cell Broadband
 160           Engine. This will make the code run considerably faster on Cell
 161           but somewhat slower on other machines. This option only changes
 162           the scheduling of instructions, not the selection of instructions
 163           itself, so the resulting kernel will keep running on all other
 164           machines.
 165
 166 # this is temp to handle compat with arch=ppc
 167 config 8xx
 168         bool
 169
 170 config E500
 171         select FSL_EMB_PERFMON
 172         select PPC_FSL_BOOK3E
 173         bool
 174
 175 config PPC_E500MC
 176         bool "e500mc Support"
 177         select PPC_FPU
 178         select COMMON_CLK
 179         depends on E500
 180         help
 181           This must be enabled for running on e500mc (and derivatives
 182           such as e5500/e6500), and must be disabled for running on
 183           e500v1 or e500v2.
 184
 185 config PPC_FPU
 186         bool
 187         default y if PPC64
 188
 189 config FSL_EMB_PERFMON
 190         bool "Freescale Embedded Perfmon"
 191         depends on E500 || PPC_83xx
 192         help
 193           This is the Performance Monitor support found on the e500 core
 194           and some e300 cores (c3 and c4).  Select this only if your
 195           core supports the Embedded Performance Monitor APU
 196
 197 config FSL_EMB_PERF_EVENT
 198         bool
 199         depends on FSL_EMB_PERFMON && PERF_EVENTS && !PPC_PERF_CTRS
 200         default y
 201
 202 config FSL_EMB_PERF_EVENT_E500
 203         bool
 204         depends on FSL_EMB_PERF_EVENT && E500
 205         default y
 206
 207 config 4xx
 208         bool
 209         depends on 40x || 44x
 210         default y
 211
 212 config BOOKE
 213         bool
 214         depends on E200 || E500 || 44x || PPC_BOOK3E
 215         default y
 216
 217 config FSL_BOOKE
 218         bool
 219         depends on (E200 || E500) && PPC32
 220         default y
 221
 222 # this is for common code between PPC32 & PPC64 FSL BOOKE
 223 config PPC_FSL_BOOK3E
 224         bool
 225         select FSL_EMB_PERFMON
 226         select PPC_SMP_MUXED_IPI
 227         select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64
 228         select PPC_DOORBELL
 229         default y if FSL_BOOKE
 230
 231 config PTE_64BIT
 232         bool
 233         depends on 44x || E500 || PPC_86xx
 234         default y if PHYS_64BIT
 235
 236 config PHYS_64BIT
 237         bool 'Large physical address support' if E500 || PPC_86xx
 238         depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx
 239         ---help---
 240           This option enables kernel support for larger than 32-bit physical
 241           addresses.  This feature may not be available on all cores.
 242
 243           If you have more than 3.5GB of RAM or so, you also need to enable
 244           SWIOTLB under Kernel Options for this to work.  The actual number
 245           is platform-dependent.
 246
 247           If in doubt, say N here.
 248
 249 config ALTIVEC
 250         bool "AltiVec Support"
 251         depends on 6xx || POWER4 || (PPC_E500MC && PPC64)
 252         ---help---
 253           This option enables kernel support for the Altivec extensions to the
 254           PowerPC processor. The kernel currently supports saving and restoring
 255           altivec registers, and turning on the 'altivec enable' bit so user
 256           processes can execute altivec instructions.
 257
 258           This option is only usefully if you have a processor that supports
 259           altivec (G4, otherwise known as 74xx series), but does not have
 260           any affect on a non-altivec cpu (it does, however add code to the
 261           kernel).
 262
 263           If in doubt, say Y here.
 264
 265 config VSX
 266         bool "VSX Support"
 267         depends on POWER4 && ALTIVEC && PPC_FPU
 268         ---help---
 269
 270           This option enables kernel support for the Vector Scaler extensions
 271           to the PowerPC processor. The kernel currently supports saving and
 272           restoring VSX registers, and turning on the 'VSX enable' bit so user
 273           processes can execute VSX instructions.
 274
 275           This option is only useful if you have a processor that supports
 276           VSX (P7 and above), but does not have any affect on a non-VSX
 277           CPUs (it does, however add code to the kernel).
 278
 279           If in doubt, say Y here.
 280
 281 config PPC_ICSWX
 282         bool "Support for PowerPC icswx coprocessor instruction"
 283         depends on POWER4 || PPC_A2
 284         default n
 285         ---help---
 286
 287           This option enables kernel support for the PowerPC Initiate
 288           Coprocessor Store Word (icswx) coprocessor instruction on POWER7
 289           or newer processors.
 290
 291           This option is only useful if you have a processor that supports
 292           the icswx coprocessor instruction. It does not have any effect
 293           on processors without the icswx coprocessor instruction.
 294
 295           This option slightly increases kernel memory usage.
 296
 297           If in doubt, say N here.
 298
 299 config PPC_ICSWX_PID
 300         bool "icswx requires direct PID management"
 301         depends on PPC_ICSWX && POWER4
 302         default y
 303         ---help---
 304           The PID register in server is used explicitly for ICSWX.  In
 305           embedded systems PID management is done by the system.
 306
 307 config PPC_ICSWX_USE_SIGILL
 308         bool "Should a bad CT cause a SIGILL?"
 309         depends on PPC_ICSWX
 310         default n
 311         ---help---
 312           Should a bad CT used for "non-record form ICSWX" cause an
 313           illegal instruction signal or should it be silent as
 314           architected.
 315
 316           If in doubt, say N here.
 317
 318 config SPE
 319         bool "SPE Support"
 320         depends on E200 || (E500 && !PPC_E500MC)
 321         default y
 322         ---help---
 323           This option enables kernel support for the Signal Processing
 324           Extensions (SPE) to the PowerPC processor. The kernel currently
 325           supports saving and restoring SPE registers, and turning on the
 326           'spe enable' bit so user processes can execute SPE instructions.
 327
 328           This option is only useful if you have a processor that supports
 329           SPE (e500, otherwise known as 85xx series), but does not have any
 330           effect on a non-spe cpu (it does, however add code to the kernel).
 331
 332           If in doubt, say Y here.
 333
 334 config PPC_STD_MMU
 335         def_bool y
 336         depends on PPC_BOOK3S
 337
 338 config PPC_STD_MMU_32
 339         def_bool y
 340         depends on PPC_STD_MMU && PPC32
 341
 342 config PPC_STD_MMU_64
 343         def_bool y
 344         depends on PPC_STD_MMU && PPC64
 345
 346 config PPC_MMU_NOHASH
 347         def_bool y
 348         depends on !PPC_STD_MMU
 349
 350 config PPC_BOOK3E_MMU
 351         def_bool y
 352         depends on FSL_BOOKE || PPC_BOOK3E
 353
 354 config PPC_MM_SLICES
 355         bool
 356         default y if (!PPC_FSL_BOOK3E && PPC64 && HUGETLB_PAGE) || (PPC_STD_MMU_64 && PPC_64K_PAGES)
 357         default n
 358
 359 config PPC_HAVE_PMU_SUPPORT
 360        bool
 361
 362 config PPC_PERF_CTRS
 363        def_bool y
 364        depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT
 365        help
 366          This enables the powerpc-specific perf_event back-end.
 367
 368 config SMP
 369         depends on PPC_BOOK3S || PPC_BOOK3E || FSL_BOOKE || PPC_47x
 370         bool "Symmetric multi-processing support"
 371         ---help---
 372           This enables support for systems with more than one CPU. If you have
 373           a system with only one CPU, say N. If you have a system with more
 374           than one CPU, say Y.  Note that the kernel does not currently
 375           support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
 376           since they have inadequate hardware support for multiprocessor
 377           operation.
 378
 379           If you say N here, the kernel will run on single and multiprocessor
 380           machines, but will use only one CPU of a multiprocessor machine. If
 381           you say Y here, the kernel will run on single-processor machines.
 382           On a single-processor machine, the kernel will run faster if you say
 383           N here.
 384
 385           If you don't know what to do here, say N.
 386
 387 config NR_CPUS
 388         int "Maximum number of CPUs (2-8192)"
 389         range 2 8192
 390         depends on SMP
 391         default "32" if PPC64
 392         default "4"
 393
 394 config NOT_COHERENT_CACHE
 395         bool
 396         depends on 4xx || 8xx || E200 || PPC_MPC512x || GAMECUBE_COMMON
 397         default n if PPC_47x
 398         default y
 399
 400 config CHECK_CACHE_COHERENCY
 401         bool
 402
 403 config PPC_DOORBELL
 404         bool
 405         default n
 406
 407 endmenu
 408
 409 choice
 410         prompt "Endianness selection"
 411         default CPU_BIG_ENDIAN
 412         help
 413           This option selects whether a big endian or little endian kernel will
 414           be built.
 415
 416 config CPU_BIG_ENDIAN
 417         bool "Build big endian kernel"
 418         help
 419           Build a big endian kernel.
 420
 421           If unsure, select this option.
 422
 423 config CPU_LITTLE_ENDIAN
 424         bool "Build little endian kernel"
 425         help
 426           Build a little endian kernel.
 427
 428           Note that if cross compiling a little endian kernel,
 429           CROSS_COMPILE must point to a toolchain capable of targeting
 430           little endian powerpc.
 431
 432 endchoice